function show_overlay(id){

	document.getElementById('selectedLayer').style.visibility='visible';
	document.getElementById('projectFrame').src="projecten/project.php?project_id="+id;
}
function hide_overlay(){
	
	var agt=navigator.userAgent.toLowerCase();
	
	if (agt.indexOf("firefox") != -1) { 
		
		var FramePageHeight = document.body.scrollHeight + 10;
		window.parent.document.getElementById('selectedLayer').style.visibility='hidden'; 
	} else {
	
		var FramePageHeight = document.body.scrollHeight + 10;
		parent.document.getElementById('selectedLayer').style.visibility='hidden'; 
	}
}
function setSticker(){
	var obj = document.getElementById('rootTable');
	var tableLeft = 0;
	var tableTop = 0;
	if (obj.offsetParent) {
		tableLeft = obj.offsetLeft;
		tableTop = obj.offsetTop;
		while (obj = obj.offsetParent) {
			tableLeft += obj.offsetLeft;
			tableTop += obj.offsetTop;
		}
	}
	document.getElementById('CascoBouw').style.left = tableLeft+830;
	document.getElementById('CascoBouw').style.top = tableTop+280;
}

function checkForm() {
	var fout=0;
	
	if(document.getElementById('voorletter').value=='') {
		fout=1;
		document.getElementById('voorletter').className='red';
	} else {
		document.getElementById('voorletter').className='';
	}
	
	if(document.getElementById('achternaam').value=='') {
		fout=1;
		document.getElementById('achternaam').className='red';
	} else {
		document.getElementById('achternaam').className='';
	}
	
	if(document.getElementById('straatnaam').value=='') {
		fout=1;
		document.getElementById('straatnaam').className='red';
	} else {
		document.getElementById('straatnaam').className='';
	}
	
	if(document.getElementById('huisnummer').value=='') {
		fout=1;
		document.getElementById('huisnummer').className='red';
	} else {
		document.getElementById('huisnummer').className='';
	}
	
	if(document.getElementById('postcode1').value=='' || document.getElementById('postcode1').value.length < 4) {
		fout=1;
		document.getElementById('postcode1').className='red';
	} else {
		document.getElementById('postcode1').className='';
	}
	
	if(document.getElementById('postcode2').value=='' || document.getElementById('postcode2').value.length < 2) {
		fout=1;
		document.getElementById('postcode2').className='red';
	} else {
		document.getElementById('postcode2').className='';
	}
	
	if(document.getElementById('plaats').value=='') {
		fout=1;
		document.getElementById('plaats').className='red';
	} else {
		document.getElementById('plaats').className='';
	}
	
	if(document.getElementById('telefoon_prive').value=='') {
		fout=1;
		document.getElementById('telefoon_prive').className='red';
	} else {
		document.getElementById('telefoon_prive').className='';
	}
	
	if(document.getElementById('ingeschreven_gemeente').value=='') {
		fout=1;
		document.getElementById('ingeschreven_gemeente').className='red';
	} else {
		document.getElementById('ingeschreven_gemeente').className='';
	}
	
	if(document.getElementById('email').value=='') {
		fout=1;
		document.getElementById('email').className='red';
	} else {
		document.getElementById('email').className='';
	}
	
	if(!fout) {
		document.aanvragen.submit();
	} else 
	{
		$('html, body').animate({scrollTop: 600}, 500);	
		setTimeout(function() { 
			$("#errorMsg").slideDown("slow");
		}, 500); 
		
	}
}

function validateBios() {
	var fout=0;
	
	if(document.getElementById('naam').value=='') {
		fout=1;
		document.getElementById('naam').className='red';
	} else {
		document.getElementById('naam').className='';
	}
	
	if(document.getElementById('adres').value=='') {
		fout=1;
		document.getElementById('adres').className='red';
	} else {
		document.getElementById('adres').className='';
	}
	
	if(document.getElementById('woonplaats').value=='') {
		fout=1;
		document.getElementById('woonplaats').className='red';
	} else {
		document.getElementById('woonplaats').className='';
	}
	
	validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
	if(document.getElementById('email').value=='' || document.getElementById('email').value.search(validRegExp) == -1) {
		fout=1;
		document.getElementById('email').className='red';
	} else {
		document.getElementById('email').className='';
	}	
	
	if(!fout) {
		document.bios.submit();
	}	
}